iron clayn.adj.

(as noun)Brit.

/ˌʌɪən ˈkleɪ/, U.S.

/ˌaɪ(ə)rn ˈkleɪ/ (as adjective)Brit.

/ˈʌɪən kleɪ/, U.S.

/ˈaɪ(ə)rn ˌkleɪ/

Origin: Formed within English, by compounding. Etymons: iron n.¹, clay n.

Etymology: < iron n.¹ + clay n.

A. n.

Geology. Ironstone containing much clay. Also: clay rich in iron oxide. Frequently attributive.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > clay > [noun] > other clays

red clayc1475

urry1669

blae1724

cat-dirt1747

iron clay1750

till1762

mulatto clay1788

oak-tree clay1794

porcelain jasper1794

porcellanite1794

Karoo ground1836

plinthite1836

papa1851

Bradford clay1858

Indianaite1868

sinopite1868

hydrobiotite1881

pampas-clay1885

byon1892

potato clay1896

bentonite1898

quick clay1901

gumbotil1916

the world > the earth > minerals > ore > [noun] > metal ore > iron ore > hard

ironstone1522

mine-stone1612

dogger1670

gubbin1712

iron clay1750

small balls1793

penny-stone1803

mine-stuff1839

silver thread1855

1750 C. Smith Antient & Present State Cork II. iv. viii. 368 I have observed veins of an iron clay running through the Strata.

1849 Q. Jrnl. Geol. Soc. 5 52 Those iron-clay hills extend here from fifty to sixty miles to the east.

1896 Rep. Geol. Surv. Missouri 9 49 Sandstone, dark chocolate, with iron clay nodules and plant remains.

1908 E. F. Burchard in Mineral Resources U.S. 1907 690 There is also present..a variable thickness of a nearly black, manganiferous iron clay (umber).

1959 U.S. Geol. Surv. Water-supply Paper No. 1468. 92 (table) Silt..contains many angular dark-brown iron-clay fragments.

2010 M. Erickson & R. Hunter in A. Turner Studio Ceramics 107/2 Three colored earthenware clays were selected: a white clay, a red iron clay, and an iron manganese body.

B. adj.

With hyphen. Made from or consisting of iron and clay.With reference or allusion to Daniel 2:41–3.

ΘΚΠ

society > occupation and work > materials > raw material > clay > [adjective] > made of clay > of specific type

iron clay1772

china-clay1875

1772 J. W. Fletcher Logica Genevensis vii. 103 Uncovering the two iron-clay feet of your great image.

1828 G. S. Faber Sacred Cal. Prophecy III. App. 489 The commencement of the junction of the iron-clay feet and ten toes of the image to its iron legs.

2001 J. F. Walvoord Prophecy in New Millennium i. 13 The feet, consisting of an iron-clay mixture, are prophetic of the final revival of the Roman Empire.

This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022).

单词	iron clay
释义	iron clayn.adj. (as noun)Brit. /ˌʌɪən ˈkleɪ/, U.S. /ˌaɪ(ə)rn ˈkleɪ/ (as adjective)Brit. /ˈʌɪən kleɪ/, U.S. /ˈaɪ(ə)rn ˌkleɪ/ Origin: Formed within English, by compounding. Etymons: iron n.¹, clay n. Etymology: < iron n.¹ + clay n. A. n. Geology. Ironstone containing much clay. Also: clay rich in iron oxide. Frequently attributive. ΘΚΠ the world > the earth > structure of the earth > constituent materials > clay > [noun] > other clays red clayc1475 urry1669 blae1724 cat-dirt1747 iron clay1750 till1762 mulatto clay1788 oak-tree clay1794 porcelain jasper1794 porcellanite1794 Karoo ground1836 plinthite1836 papa1851 Bradford clay1858 Indianaite1868 sinopite1868 hydrobiotite1881 pampas-clay1885 byon1892 potato clay1896 bentonite1898 quick clay1901 gumbotil1916 the world > the earth > minerals > ore > [noun] > metal ore > iron ore > hard ironstone1522 mine-stone1612 dogger1670 gubbin1712 iron clay1750 small balls1793 penny-stone1803 mine-stuff1839 silver thread1855 1750 C. Smith Antient & Present State Cork II. iv. viii. 368 I have observed veins of an iron clay running through the Strata. 1849 Q. Jrnl. Geol. Soc. 5 52 Those iron-clay hills extend here from fifty to sixty miles to the east. 1896 Rep. Geol. Surv. Missouri 9 49 Sandstone, dark chocolate, with iron clay nodules and plant remains. 1908 E. F. Burchard in Mineral Resources U.S. 1907 690 There is also present..a variable thickness of a nearly black, manganiferous iron clay (umber). 1959 U.S. Geol. Surv. Water-supply Paper No. 1468. 92 (table) Silt..contains many angular dark-brown iron-clay fragments. 2010 M. Erickson & R. Hunter in A. Turner Studio Ceramics 107/2 Three colored earthenware clays were selected: a white clay, a red iron clay, and an iron manganese body. B. adj. With hyphen. Made from or consisting of iron and clay.With reference or allusion to Daniel 2:41–3. ΘΚΠ society > occupation and work > materials > raw material > clay > [adjective] > made of clay > of specific type iron clay1772 china-clay1875 1772 J. W. Fletcher Logica Genevensis vii. 103 Uncovering the two iron-clay feet of your great image. 1828 G. S. Faber Sacred Cal. Prophecy III. App. 489 The commencement of the junction of the iron-clay feet and ten toes of the image to its iron legs. 2001 J. F. Walvoord Prophecy in New Millennium i. 13 The feet, consisting of an iron-clay mixture, are prophetic of the final revival of the Roman Empire. This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022). < n.adj.1750
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